O que este módulo faz

Cluster nodes manage database and application membership. They do not promise automatic workload scheduling, geographic routing or seamless autoscaling.

Antes de começar

Private network reachability between nodes.
Administrator API token for the node being attached.
Compatible Callaba versions and a current configuration backup.

Configurações explicadas

Explicamos apenas os controles úteis ao operador. Nomes internos e eventos de implementação são omitidos de propósito.

Node identity

Describe the trusted member.

Name: Operator-facing node name.
Node type: Master, Slave or Test role supported by the UI.
Private host: Reachable private address used between nodes.
Avoid a public address when a private path is available.
API token: Administrator token used to establish trusted management.
Treat it as a secret.
Active: Lifecycle state of the registered node.

Primeiro fluxo seguro

01
Back up the current configuration and verify private network connectivity.
02
Create the node with its intended role, private host and administrator token.
03
Attach the node and wait for membership to settle.
04
Start it and verify reachability plus the expected database membership.
05
Test detach and recovery procedure outside a production incident.

Exemplos de fluxo

Use quando

Add a trusted slave node

A self-hosted deployment needs a supported additional cluster member.

Primary nodeCurrent cluster

Private networkReachability

Slave nodeAttach + start

MembershipVerified state

Diagrama animado do fluxo: Add a trusted slave node

Como construir

1
Confirm compatible versions, backup and private connectivity.
2
Register the Slave with its private host and token.
3
Attach and start the node in a controlled window.
4
Verify node state and database membership before using it operationally.

Validar o resultado

The node is reachable over the intended private path.
Role and lifecycle state match the planned topology.
Attach/detach operations produce the expected membership state.

Solução de problemas

Attach fails

Verifique

Check private reachability.
Verify the node token and version.
Confirm the role and current membership.

Depois faça isto

Correct trust or network prerequisites before repeating the attach action.

Nós do cluster